Ford F-150 2001 Climate Control System Workshop Manual page 25

2001 F-150 Workshop Manual
E13 CHECK CIRCUIT 181 (BR/O)
E14 CHECK THE A/C BLOWER MOTOR RELAY GROUND
E15 CHECK FOR AN OPEN IN THE A/C BLOWER MOTOR FEED CIRCUIT
Blower Motor C190
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS11/~MUS~LEN/18/...
Is the voltage 10 volts or greater?
Yes
GO to E13.
No
REPAIR Circuit 296 (W/P) for an open. TEST the system for normal operation.
Measure the resistance between function selector switch C217-1, Circuit 181 (BR/O), and A/C blower motor relay
connector Pin 86, Circuit 181 (BR/O).
Is the resistance less than 5 ohms?
Yes
INSTALL a new function selector switch. TEST the system for normal operation.
No
REPAIR Circuit 181 (BR/O) for an open. TEST the system for normal operation.
Measure the resistance between A/C blower motor relay connector Pin 85, Circuit 57 (BK), and ground.
Is the resistance less than 5 ohms?
Yes
GO to E15.
No
REPAIR Circuit 57 (BK) for an open. TEST the system for normal operation.
Measure the resistance between A/C blower motor relay connector Pin 30, Circuit 399 (BR/Y), and blower motor
C190, Circuit 181 (BR/O).
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12/14/2010